libpam-nufw 2.2.15-1build1 (amd64 binary) in ubuntu intrepid

 NuFW is an authenticating gateway, which means that connections are
 authenticated before being forwarded through the gateway. Classical packet
 filtering systems disregard the identity of the user who may be attempting to
 access the network, instead caring only about the originating IP addresses.
 .
 This module allows to open a client connection to the nufw authentication
 gateway. When network traffic leaves the machine, it deals with it and sends
 authenticating data to the nuauth server.